package sklepik;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

public class Downloader {
	public void download(String url, String destinationDirectory, String fileName) throws IOException{
    	
   	 File file = new File(destinationDirectory, fileName);
        URL u = new URL(fixWhitespace(url));
        URLConnection uc = u.openConnection();
        uc.connect();
        InputStream in = uc.getInputStream();
        FileOutputStream out = new FileOutputStream(file);
        final int BUF_SIZE = 1 << 8;
        byte[] buffer = new byte[BUF_SIZE];
        int bytesRead = -1;
        while ((bytesRead = in.read(buffer)) > -1) {
                out.write(buffer, 0, bytesRead);
        }
        in.close();
        out.close();
   }
   private String fixWhitespace(String url) {
   	return url.replaceAll(" ", "%20");
   }
}
